Module SteamShared not found

Hi all
After 14 months painful R&D I’ve finally finished Phase 1 of my project.
Only to be pipped at the post when packaging.

This shows up in the log when attempting to run the packaged app…

Module ‘SteamShared’ not found - its StaticallyLinkedModuleInitializers function is null.

Anyone seen this before? I’ve tried a bunch of things, like copying the SteamShared plugin to the plugins folder, but then the packaging process fails. Edited the uproject to include it manually, didn’t work.

Regards, Grover